typedef float dtype;
typedef float rtype;
#define cT  cumo_cSFloat
#define cRT cumo_cSFloat
#define mTM cumo_mSFloatMath

#include "float_macro.h"
#include "cublas_v2.h"
#include "cumo/cuda/cublas.h"
#include "cumo/cuda/cudnn.h"

#ifdef SFMT_H
/* generates a random number on [0,1)-real-interval */
inline static dtype m_rand(dtype max)
{
    return to_real2(gen_rand32()) * max;
}

/* generates random numbers from the normal distribution
   using Box-Muller Transformation.
 */
inline static void m_rand_norm(dtype mu, dtype sigma, dtype *a0, dtype *a1)
{
    dtype x1, x2, w;
    do {
	x1 = to_real2(gen_rand32());
	x1 = x1*2-1;
	x2 = to_real2(gen_rand32());
	x2 = x2*2-1;
	w = x1 * x1 + x2 * x2;
    } while (w>=1);
    w = sqrt( (-2*log(w)) / w );
    if (a0) {*a0 = x1*w * sigma + mu;}
    if (a1) {*a1 = x2*w * sigma + mu;}
}
#endif

#define m_min_init cumo_sfloat_new_dim0(0.0/0.0)
#define m_max_init cumo_sfloat_new_dim0(0.0/0.0)

#define m_extract(x) rb_float_new(*(float*)x)
#define m_nearly_eq(x,y) (fabs(x-y)<=(fabs(x)+fabs(y))*FLT_EPSILON*2)

#define M_EPSILON rb_float_new(1.1920928955078125e-07)
#define M_MIN     rb_float_new(1.1754943508222875e-38)
#define M_MAX     rb_float_new(3.4028234663852886e+38)

#define DATA_MIN -FLT_MAX
#define DATA_MAX FLT_MAX